Hello,

I am trying to build boost-sandbox/socket library with the command line:

bjam --boost=/root/projects/boost/boost_1_34_1/ --boost-build=/root/projects/boost/build_sandbox/ --toolset=gcc

Then I got the following error:

Building Boost.Regex with the optional Unicode/ICU support disabled.

Please refer to the Boost.Regex documentation for more information

(don't panic: this is a strictly optional feature).

Jamfile:10: in modules.load

rule subproject unknown in module Jamfile</root/projects/boost/boost_1_34_1/sandbox/libs/socket/build>.

/root/projects/boost/boost_1_34_1/tools/build/v2/build/project.jam:312: in load-jamfile

/root/projects/boost/boost_1_34_1/tools/build/v2/build/project.jam:68: in load

/root/projects/boost/boost_1_34_1/tools/build/v2/build/project.jam:170: in project.find

/root/projects/boost/boost_1_34_1/tools/build/v2/build-system.jam:237: in load

/root/projects/boost/boost_1_34_1/tools/build/v2/kernel/modules.jam:261: in import

/root/projects/boost/boost_1_34_1/tools/build/v2/kernel/bootstrap.jam:132: in boost-build

/root/projects/boost/boost_1_34_1/sandbox/boost-build.jam:54: in module scope

What's wrong?

Thanks in advance

Markus